Wake-up signals and dormancy status signals for selected physical channel identifiers

ABSTRACT

In an aspect, a BS transmits a WUS that includes an indication of selected PCIs of a PCI group to a UE. The UE receives the WAS and monitors one or more configured DRX ON durations associated with the selected PCIs of the PCI group. In another aspect, a BS transmits a signal that includes dormancy status information for a set of selected PCIs to a UE. For each PCI in the set of selected PCIs indicated by the dormancy status information as associated with a dormant state, the UE refrains from PDCCH monitoring on a dormant BWP to which the respective PCI transitions. For each PCI in the set of selected PCIs indicated by the dormancy status information as associated with a non-dormant state, the UE performs PDCCH monitoring on a non-dormant BWP to which the respective PCI transitions.

CROSS-REFERENCE TO RELATED APPLICATION

The present Application for Patent is a Divisional of U.S.Non-Provisional application Ser. No. 17/184,212, entitled “WAKE-UPSIGNALS AND DORMANCY STATUS SIGNALS FOR SELECTED PHYSICAL CHANNELIDENTIFIERS”, filed Feb. 24, 2021, which in turn claims the benefit ofU.S. Provisional Application No. 63/015,230, entitled “WAKE-UP SIGNALSAND DORMANCY STATUS SIGNALS FOR SELECTED PHYSICAL CHANNEL IDENTIFIERS”,filed Apr. 24, 2020, each of which is assigned to the assignee hereofand hereby expressly incorporated by reference herein in its entirety.

BACKGROUND OF THE DISCLOSURE 1. Field of the Disclosure

Aspects of the disclosure relate generally to wireless communicationsand to techniques and apparatuses related to wake-up signals anddormancy status signals for selected physical channel identifiers(PCIs).

2. Description of the Related Art

Wireless communication systems have developed through variousgenerations, including a first-generation analog wireless phone service(1G), a second-generation (2G) digital wireless phone service (includinginterim 2.5G networks), a third-generation (3G) high speed data,Internet-capable wireless service, and a fourth-generation (4G) service(e.g., Long-Term Evolution (LTE), WiMax). There are presently manydifferent types of wireless communication systems in use, includingcellular and personal communications service (PCS) systems. Examples ofknown cellular systems include the cellular Analog Advanced Mobile PhoneSystem (AMPS), and digital cellular systems based on code divisionmultiple access (CDMA), frequency division multiple access (FDMA), timedivision multiple access (TDMA), the Global System for Mobile access(GSM) variation of TDMA, etc.

A fifth generation (5G) mobile standard calls for higher data transferspeeds, greater numbers of connections, and better coverage, among otherimprovements. The 5G standard (also referred to as “New Radio” or “NR”),according to the Next Generation Mobile Networks Alliance, is designedto provide data rates of several tens of megabits per second to each oftens of thousands of users, with 1 gigabit per second to tens of workerson an office floor. Several hundreds of thousands of simultaneousconnections should be supported in order to support large sensordeployments. Consequently, the spectral efficiency of 5G mobilecommunications should be significantly enhanced compared to the current4G/LTE standard. Furthermore, signaling efficiencies should be enhancedand latency should be substantially reduced compared to currentstandards.

SUMMARY

The following presents a simplified summary of one or more aspects inorder to provide a basic understanding of such aspects. This summary isnot an extensive overview of all contemplated aspects, and is intendedto neither identify key or critical elements of all aspects nordelineate the scope of any or all aspects. Its sole purpose is topresent some concepts of one or more aspects in a simplified form as aprelude to the more detailed description that is presented later.

In 3GPP Rel. 16, a wake-up signal (WUS) was introduced and carried byDCI format 2_6, which is monitored by a UE in a designated occasionbefore each configured discontinuous reception (DRX) ON duration. In3GPP Rel. 16, the WUS includes a UE-specific indication per PCI as towhether the UE should wake up for a next configured DRX ON duration.

In 3GPP Rel. 17, L1/L2-based inter-cell mobility is introduced, wherebyUEs may be served by the RAN in one of two modes, characterized asfollows:

-   -   Mode 1: Each serving cell of the UE has multiple TRPs, which can        be at different locations. Each TRP may have a different PCI        (e.g., indicated by SSB from the respective TRP). The UE may be        served by a subset of the serving cell's TRPs, which can change        over time via DCI or MAC-CE signaling (e.g., TRPs #1 and #2 at        time 1, TRPs #2, #3 and #4 at time 2, etc.), and    -   Mode 2: UE is configured with a group of serving cells with a        single PCI per serving cell. UE is configured to measure L1        metrics per serving cell in the group (e.g., L1-RSRP/SINR/RSRQ).        The UE may be served by a subset of the serving cells, which can        change over time via DCI or MAC-CE signaling (e.g., cell #1 and        #2 at time 1, cells #2, #3 and #4 at time 2, etc.). A base        station (e.g., a gNB associated with one or more of the serving        cells) determines the subset based on an L1 measurement report        from the UE that is transmitted to either particular selected        serving cells or to an anchor serving cell among the group of        serving cells.

Since WUS is conventionally transmitted per-PCI in 3GPP Rel. 16, aseparate WUS needs to be transmitted for each PCI for UEs operating inaccordance with Mode 1 or Mode 2 as noted above, which increasesinterference, system overhead and power consumption at the UE.Embodiments of the disclosure are thereby directed to a WUS that providea wake-up indication for selected PCIs of a PCI group, which providesvarious technical advantages, such as reducing interference, systemoverhead and power consumption at the UE.

In an aspect of the disclosure, a method, a computer-readable medium,and an apparatus are provided. The apparatus may be a UE. The UE mayreceive a wake-up signal (WUS) that includes an indication of selectedphysical cell identifiers (PCIs) of a PCI group, and monitor, inresponse to the WUS, one or more configured DRX ON durations associatedwith the selected PCIs of the PCI group.

In another aspect of the disclosure, a method, a computer-readablemedium, and an apparatus are provided. The apparatus may be a basestation. The base station may transmit, to a user equipment (UE), awake-up signal (WUS) that includes an indication of selected physicalcell identifiers (PCIs) of a PCI group, and transmit, to the UE based onthe WUS, on one or more configured DRX ON durations associated with theselected PCIs of the PCI group.

In 3GPP Rel. 16, WUS also indicates dormancy status information perconfigured secondary cell (SCell) group per UE. In particular, if theWUS indicates the SCell group to be in dormant state, each activatedSCell in the corresponding group will transition to its dormant BWP, forwhich no PDCCH monitoring is performed to save power at the UE.Alternatively, the SCell group is indicated to be in a non-dormantstate, each activated SCell in the corresponding group will transitionto its first non-dormant BWP, which has PDCCH monitoring for activecommunications

Since WUS is conventionally transmitted per-PCI in 3GPP Rel. 16, aseparate indication of dormancy status via WUS needs to be transmittedfor the SCell group of each PCI for UEs operating as noted above, whichincreases interference, system overhead and power consumption at the UE.Embodiments of the disclosure are thereby directed to a WUS that providedormancy status information for a selected set of PCIs, which providesvarious technical advantages, such as reducing interference, systemoverhead and power consumption at the UE.

In an aspect of the disclosure, a method, a computer-readable medium,and an apparatus are provided. The apparatus may be a UE. The UE mayreceive a signal that includes dormancy status information for a set ofselected physical cell identifiers (PCIs). for each PCI in the set ofselected PCIs indicated by the dormancy status information as associatedwith a dormant state, refraining from Physical Downlink Control Channel(PDCCH) monitoring on a dormant bandwidth part (BWP) to which therespective PCI transitions. For each PCI in the set of selected PCIsindicated by the dormancy status information as associated with anon-dormant state, performing PDCCH monitoring on a non-dormant BWP towhich the respective PCI transitions.

In another aspect of the disclosure, a method, a computer-readablemedium, and an apparatus are provided. The apparatus may be a basestation. The base station may transmit, to a user equipment (UE), asignal that includes dormancy status information for a set of selectedphysical cell identifiers (PCIs). For each PCI in the set of selectedPCIs indicated by the dormancy status information as associated with adormant state, transitioning the respective PCI to a dormant bandwidthpart (BWP) without PDCCH communications targeted to the UE. For each PCIin the set of selected PCIs indicated by the dormancy status informationas associated with a non-dormant state, transitioning the respective PCIto a non-dormant BWP with PDCCH communications targeted to the UE.

Aspects generally include a method, apparatus, system, computer programproduct, non-transitory computer-readable medium, user equipment, cIoTuser equipment, base station, wireless communication device, and/orprocessing system as substantially described with reference to and asillustrated by the drawings, and specification.

The foregoing has outlined rather broadly the features and technicaladvantages of examples according to the disclosure in order that thedetailed description that follows may be better understood. Additionalfeatures and advantages will be described hereinafter. The conceptionand specific examples disclosed may be readily utilized as a basis formodifying or designing other structures for carrying out the samepurposes of the present disclosure. Such equivalent constructions do notdepart from the scope of the appended claims. Characteristics of theconcepts disclosed herein, both their organization and method ofoperation, together with associated advantages will be better understoodfrom the following description when considered in connection with theaccompanying figures. Each of the figures is provided for the purposesof illustration and description, and not as a definition of the limitsof the claims.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is diagram illustrating an example of a wireless communicationnetwork.

FIG. 2 is a diagram illustrating an example of a base station incommunication with a UE in a wireless communication network.

FIG. 3A is a diagram illustrating an example of a DL frame structure,according to aspects of the disclosure.

FIG. 3B is a diagram illustrating an example of channels within the DLframe structure, according to aspects of the disclosure.

FIG. 4 illustrates a discontinuous reception (DRX) sequence according toan aspect of the disclosure.

FIG. 5 illustrates an exemplary process of wireless communicationsaccording to an aspect of the disclosure.

FIG. 6 illustrates an exemplary process of wireless communicationsaccording to another aspect of the disclosure.

FIG. 7 illustrates a DRX sequence according to an aspect of thedisclosure.

FIG. 8 illustrates an exemplary process of wireless communicationsaccording to an aspect of the disclosure.

FIG. 9 illustrates an exemplary process of wireless communicationsaccording to another aspect of the disclosure.

FIG. 10 illustrates a DRX sequence according to an aspect of thedisclosure.

FIG. 11 is a conceptual data flow diagram illustrating the data flowbetween different means/components in exemplary apparatuses inaccordance with an embodiment of the disclosure.

FIG. 12 is a diagram illustrating an example of a hardwareimplementation for an apparatus employing a processing system.

FIG. 13 is a diagram illustrating another example of a hardwareimplementation for an apparatus employing a processing system.

DETAILED DESCRIPTION

The detailed description set forth below in connection with the appendeddrawings is intended as a description of various configurations and isnot intended to represent the configurations in which the conceptsdescribed herein may be practiced. The detailed description includesspecific details for the purposes of providing a thorough understandingof various concepts. However, it will be apparent to those skilled inthe art that these concepts may be practiced without these specificdetails. In some instances, well-known structures and components areshown in block diagram form in order to avoid obscuring such concepts.

Several aspects of telecommunication systems will now be presented withreference to various apparatus and methods. These apparatus and methodswill be described in the following detailed description and illustratedin the accompanying drawings by various blocks, modules, components,circuits, steps, processes, algorithms, and/or the like (collectivelyreferred to as “elements”). These elements may be implemented usingelectronic hardware, computer software, or any combination thereof.Whether such elements are implemented as hardware or software dependsupon the particular application and design constraints imposed on theoverall system.

By way of example, an element, or any portion of an element, or anycombination of elements may be implemented with a “processing system”that includes one or more processors. Examples of processors includemicroprocessors, microcontrollers, digital signal processors (DSPs),field programmable gate arrays (FPGAs), programmable logic devices(PLDs), state machines, gated logic, discrete hardware circuits, andother suitable hardware configured to perform the various functionalitydescribed throughout this disclosure. One or more processors in theprocessing system may execute software. Software shall be construedbroadly to mean instructions, instruction sets, code, code segments,program code, programs, subprograms, software modules, applications,software applications, software packages, routines, subroutines,objects, executables, threads of execution, procedures, functions,and/or the like, whether referred to as software, firmware, middleware,microcode, hardware description language, or otherwise.

Accordingly, in one or more example embodiments, the functions describedmay be implemented in hardware, software, firmware, or any combinationthereof. If implemented in software, the functions may be stored on orencoded as one or more instructions or code on a computer-readablemedium. Computer-readable media includes computer storage media. Storagemedia may be any available media that can be accessed by a computer. Byway of example, and not limitation, such computer-readable media cancomprise a random-access memory (RAM), a read-only memory (ROM), anelectrically erasable programmable ROM (EEPROM), compact disk ROM(CD-ROM) or other optical disk storage, magnetic disk storage or othermagnetic storage devices, combinations of the aforementioned types ofcomputer-readable media, or any other medium that can be used to storecomputer executable code in the form of instructions or data structuresthat can be accessed by a computer.

It should be noted that while aspects may be described herein usingterminology commonly associated with 3G and/or 4G wireless technologies,aspects of the present disclosure can be applied in othergeneration-based communication systems, such as 5G and later, including5G technologies.

FIG. 1 is a diagram illustrating a wireless network 100 in which aspectsof the present disclosure may be practiced. The wireless network 100 maybe an LTE network or some other wireless network, such as a 5G network.The wireless network 100 may include a number of BSs 110 (shown as BS110 a, BS 110 b, BS 110 c, and BS 110 d) and other network entities. ABS is an entity that communicates with user equipment (UEs) and may alsobe referred to as a base station, a 5G BS, a Node B, a gNB, a 5G NB, anaccess point, a transmit receive point (TRP), and/or the like. Each BSmay provide communication coverage for a particular geographic area. In3GPP, the term “cell” can refer to a coverage area of a BS and/or a BSsubsystem serving this coverage area, depending on the context in whichthe term is used.

A BS may provide communication coverage for a macro cell, a pico cell, afemto cell, and/or another type of cell. A macro cell may cover arelatively large geographic area (e.g., several kilometers in radius)and may allow unrestricted access by UEs with service subscription. Apico cell may cover a relatively small geographic area and may allowunrestricted access by UEs with service subscription. A femto cell maycover a relatively small geographic area (e.g., a home) and may allowrestricted access by UEs having association with the femto cell (e.g.,UEs in a closed subscriber group (CSG)). A BS for a macro cell may bereferred to as a macro BS. A BS for a pico cell may be referred to as apico BS. A BS for a femto cell may be referred to as a femto BS or ahome BS. In the example shown in FIG. 1 , a BS 110 a may be a macro BSfor a macro cell 102 a, a BS 110 b may be a pico BS for a pico cell 102b, and a BS 110 c may be a femto BS for a femto cell 102 c. A BS maysupport one or multiple (e.g., three) cells. The terms “eNB”, “basestation”, “5G BS”, “gNB”, “TRP”, “AP”, “node B”, “5G NB”, and “cell” maybe used interchangeably herein.

In some examples, a cell may not necessarily be stationary, and thegeographic area of the cell may move according to the location of amobile BS. In some examples, the BSs may be interconnected to oneanother and/or to one or more other BSs or network nodes (not shown) inthe wireless network 100 through various types of backhaul interfacessuch as a direct physical connection, a virtual network, and/or the likeusing any suitable transport network.

Wireless network 100 may also include relay stations. A relay station isan entity that can receive a transmission of data from an upstreamstation (e.g., a BS or a UE) and send a transmission of the data to adownstream station (e.g., a UE or a BS). A relay station may also be aUE that can relay transmissions for other UEs. In the example shown inFIG. 1 , a relay station 110 d may communicate with macro BS 110 a and aUE 120 d in order to facilitate communication between BS 110 a and UE120 d. A relay station may also be referred to as a relay BS, a relaybase station, a relay, and/or the like.

Wireless network 100 may be a heterogeneous network that includes BSs ofdifferent types, e.g., macro BSs, pico BSs, femto BSs, relay BSs, and/orthe like. These different types of BSs may have different transmit powerlevels, different coverage areas, and different impacts on interferencein wireless network 100. For example, macro BSs may have a high transmitpower level (e.g., 5 to 40 Watts) whereas pico BSs, femto BSs, and relayBSs may have lower transmit power levels (e.g., 0.1 to 2 Watts).

A network controller 130 may couple to a set of BSs and may providecoordination and control for these BSs. Network controller 130 maycommunicate with the BSs via a backhaul. The BSs may also communicatewith one another, e.g., directly or indirectly via a wireless orwireline backhaul.

UEs 120 (e.g., 120 a, 120 b, 120 c) may be dispersed throughout wirelessnetwork 100, and each UE may be stationary or mobile. A UE may also bereferred to as an access terminal, a terminal, a mobile station, asubscriber unit, a station, etc. A UE may be a cellular phone (e.g., asmart phone), a personal digital assistant (PDA), a wireless modem, awireless communication device, a handheld device, a laptop computer, acordless phone, a wireless local loop (WLL) station, a tablet, a camera,a gaming device, a netbook, a smartbook, an ultrabook, a medical deviceor equipment, biometric sensors/devices, wearable devices (smartwatches, smart clothing, smart glasses, smart wrist bands, smart jewelry(e.g., smart ring, smart bracelet)), an entertainment device (e.g., amusic or video device, or a satellite radio), a vehicular component orsensor, smart meters/sensors, industrial manufacturing equipment, aglobal positioning system device, or any other suitable device that isconfigured to communicate via a wireless or wired medium.

Some UEs may be considered machine-type communication (MTC) or evolvedor enhanced machine-type communication (eMTC) UEs. “MTC” may refer toMTC or eMTC. MTC UEs include, for example, robots, drones, remotedevices, sensors, meters, monitors, location tags, etc., that maycommunicate with a base station, another device (e.g., remote device),or some other entity. A wireless node may provide, for example,connectivity for or to a network (e.g., a wide area network such asInternet or a cellular network) via a wired or wireless communicationlink. Some UEs may be considered Internet-of-Things (IoT) devices,and/or may be implemented as NB-IoT (narrowband internet of things)devices. IoT UEs, eMTC UEs, coverage enhancement (CE) mode UEs,bandwidth-limited (BL) UEs, and other types of UEs that operate usingdiminished power consumption relative to a baseline UE may be referredto herein as cellular IoT (cIoT) UEs. Some UEs may be considered aCustomer Premises Equipment (CPE). UE 120 may be included inside ahousing that houses components of UE 120, such as processor components,memory components, and/or the like.

In general, any number of wireless networks may be deployed in a givengeographic area. Each wireless network may support a particular RAT andmay operate on one or more frequencies. A RAT may also be referred to asa radio technology, an air interface, and/or the like. A frequency mayalso be referred to as a carrier, a frequency channel, and/or the like.Each frequency may support a single RAT in a given geographic area inorder to avoid interference between wireless networks of different RATs.In some cases, 5G RAT networks may be deployed.

In some examples, access to the air interface may be scheduled, whereina scheduling entity (e.g., a base station) allocates resources forcommunication among some or all devices and equipment within thescheduling entity's service area or cell. Within the present disclosure,as discussed further below, the scheduling entity may be responsible forscheduling, assigning, reconfiguring, and releasing resources for one ormore subordinate entities. That is, for scheduled communication,subordinate entities utilize resources allocated by the schedulingentity. Access to the air interface may be controlled, for example,using a unified access control (UAC) system in which UEs are associatedwith an access identity (e.g., an access class and/or the like), whichmay aim to ensure that certain high-priority UEs (e.g., emergencyresponse UEs, mission critical UEs, and/or the like) can access the airinterface even in congested conditions. Updates to the UAC parameters(e.g., priority levels associated with access identities, which accessidentities are permitted to access the air interface, and/or the like)may be provided for cIoT UEs using a message, such as a paging messageor a direct indication information, which may conserve battery power ofcIoT UEs.

Base stations are not the only entities that may function as ascheduling entity. That is, in some examples, a UE may function as ascheduling entity, scheduling resources for one or more subordinateentities (e.g., one or more other UEs). In this example, the UE isfunctioning as a scheduling entity, and other UEs utilize resourcesscheduled by the UE for wireless communication. A UE may function as ascheduling entity in a peer-to-peer (P2P) network, and/or in a meshnetwork. In a mesh network example, UEs may optionally communicatedirectly with one another in addition to communicating with thescheduling entity.

Thus, in a wireless communication network with a scheduled access totime—frequency resources and having a cellular configuration, a P2Pconfiguration, and a mesh configuration, a scheduling entity and one ormore subordinate entities may communicate utilizing the scheduledresources.

As indicated above, FIG. 1 is provided merely as an example. Otherexamples may differ from what is described with regard to FIG. 1 .

FIG. 2 shows a block diagram 200 of a design of base station 110 and UE120, which may be one of the base stations and one of the UEs in FIG. 1. Base station 110 may be equipped with T antennas 234 a through 234 t,and UE 120 may be equipped with R antennas 252 a through 252 r, where ingeneral T≥1 and R≥1.

At base station 110, a transmit processor 220 may receive data from adata source 212 for one or more UEs, may select a modulation and codingscheme (MCS) for each UE based at least in part on channel qualityindicators (CQIs) received from the UE, process (e.g., encode andmodulate) the data for each UE based at least in part on the MCSselected for the UE, and provide data symbols for all UEs. Transmitprocessor 220 may also process system information (e.g., for semi-staticresource partitioning information (SRPI), and/or the like) and controlinformation (e.g., CQI requests, grants, upper layer signaling, and/orthe like) and provide overhead symbols and control symbols. Transmitprocessor 220 may also generate reference symbols for reference signals(e.g., the cell-specific reference signal) and synchronization signals(e.g., the primary synchronization signal (PSS) and secondarysynchronization signal (SSS)). A transmit (TX) multiple-inputmultiple-output (MIMO) processor 230 may perform spatial processing(e.g., precoding) on the data symbols, the control symbols, the overheadsymbols, and/or the reference symbols, if applicable, and may provide Toutput symbol streams to T modulators (MODs) 232 a through 232 t. Eachmodulator 232 may process a respective output symbol stream (e.g., fororthogonal frequency divisional multiplexing (OFDM) and/or the like) toobtain an output sample stream. Each modulator 232 may further process(e.g., convert to analog, amplify, filter, and upconvert) the outputsample stream to obtain a downlink signal. T downlink signals frommodulators 232 a through 232 t may be transmitted via T antennas 234 athrough 234 t, respectively. According to various aspects described inmore detail below, the synchronization signals can be generated withlocation encoding to convey additional information.

At UE 120, antennas 252 a through 252 r may receive the downlink signalsfrom base station 110 and/or other base stations and may providereceived signals to demodulators (DEMODs) 254 a through 254 r,respectively. Each demodulator 254 may condition (e.g., filter, amplify,downconvert, and digitize) a received signal to obtain input samples.Each demodulator 254 may further process the input samples (e.g., forOFDM and/or the like) to obtain received symbols. A MIMO detector 256may obtain received symbols from all R demodulators 254 a through 254 r,perform MIMO detection on the received symbols if applicable, andprovide detected symbols. A receive (RX) processor 258 may process(e.g., demodulate and decode) the detected symbols, provide decoded datafor UE 120 to a data sink 260, and provide decoded control informationand system information to a controller/processor 280. A channelprocessor may determine reference signal received power (RSRP), receivedsignal strength indicator (RSSI), a reference signal received quality(RSRQ), a channel quality indicator (CQI), and/or the like.

On the uplink, at UE 120, a transmit processor 264 may receive andprocess data from a data source 262 and control information (e.g., forreports comprising RSRP, RSSI, RSRQ, CQI, and/or the like) fromcontroller/processor 280. Transmit processor 264 may also generatereference symbols for one or more reference signals. The symbols fromtransmit processor 264 may be precoded by a TX MIMO processor 266 ifapplicable, further processed by modulators 254 a through 254 r (e.g.,for DFT-s-OFDM, CP-OFDM, and/or the like), and transmitted to basestation 110. At base station 110, the uplink signals from UE 120 andother UEs may be received by antennas 234, processed by demodulators232, detected by a MIMO detector 236 if applicable, and furtherprocessed by a receive processor 238 to obtain decoded data and controlinformation sent by UE 120. Receive processor 238 may provide thedecoded data to a data sink 239 and the decoded control information tocontroller/processor 240. Base station 110 may include communicationunit 244 and communicate to network controller 130 via communicationunit 244. Network controller 130 may include communication unit 294,controller/processor 290, and memory 292.

Controller/processor 240 of base station 110, controller/processor 280of UE 120, and/or any other component(s) of FIG. 2 may perform one ormore techniques associated with UAC parameter updating, as described inmore detail elsewhere herein. For example, controller/processor 240 ofbase station 110, controller/processor 280 of UE 120, and/or any othercomponent(s) of FIG. 2 may perform or direct operations of variousprocesses as described herein. Memories 242 and 282 may store data andprogram codes for BS 110 and UE 120, respectively. A scheduler 246 mayschedule UEs for data transmission on the downlink and/or uplink.

As indicated above, FIG. 2 is provided merely as an example. Otherexamples may differ from what is described with regard to FIG. 2 .

FIG. 3A is a diagram 300 illustrating an example of a DL framestructure, according to aspects of the disclosure. FIG. 3B is a diagram330 illustrating an example of channels within the DL frame structure,according to aspects of the disclosure. Other wireless communicationstechnologies may have a different frame structures and/or differentchannels.

In some cases, NR may utilize OFDM on the downlink and single-carrierfrequency division multiplexing (SC-FDM) on the uplink. In other cases,NR has an option to use OFDM on the uplink as well. OFDM and SC-FDMpartition the system bandwidth into multiple (K) orthogonal subcarriers,which are also commonly referred to as tones, bins, etc. Each subcarriermay be modulated with data. In general, modulation symbols are sent inthe frequency domain with OFDM and in the time domain with SC-FDM. Thespacing between adjacent subcarriers may be fixed, and the total numberof subcarriers (K) may be dependent on the system bandwidth. Forexample, the spacing of the subcarriers may be 15 kHz and the minimumresource allocation (resource block) may be 12 subcarriers (or 180 kHz).Consequently, the nominal FFT size may be equal to 128, 256, 512, 1024,or 2048 for system bandwidth of 1.25, 2.5, 5, 10, or 20 megahertz (MHz),respectively. The system bandwidth may also be partitioned intosubbands. For example, a subband may cover 1.08 MHz (i.e., 6 resourceblocks), and there may be 1, 2, 3, 8, or 16 subbands for systembandwidth of 1.25, 2.5, 5, 10, or 20 MHz, respectively.

NR may support multiple numerologies, for example, subcarrier spacing of15 kHz, 30 kHz, 60 kHz, 120 kHz and 240 kHz or greater may be available.Table 1 provided below lists some various parameters for different NRnumerologies.

TABLE 1 Max. Sub- nominal carrier slots/ Symbol system BW spacingSymbols/ sub- slots/ slot duration (MHz) with (kHz) slot frame frame(ms) (μs) 3K FFT size 15 14 1 10 1 66.7 50 30 14 2 20 0.5 33.3 100 60 144 40 0.25 16.7 100 120 14 8 80 0.125 8.33 400 240 14 16 160 0.0625 4.17800

In the examples of FIGS. 3A and 3B, a numerology of 15 kHz is used.Thus, in the time domain, a frame (e.g., 10 ms) is divided into 10equally sized subframes of 1 ms each, and each subframe includes onetime slot. In FIGS. 3A and 3B, time is represented horizontally (e.g.,on the X axis) with time increasing from left to right, while frequencyis represented vertically (e.g., on the Y axis) with frequencyincreasing (or decreasing) from bottom to top.

A resource grid may be used to represent time slots, each time slotincluding one or more time concurrent resource blocks (RBs) (alsoreferred to as physical RBs (PRBs)) in the frequency domain. Theresource grid is further divided into multiple resource elements (REs).An RE may correspond to one symbol length in the time domain and onesubcarrier in the frequency domain. In the numerology of FIGS. 3A and3B, for a normal cyclic prefix, an RB may contain 12 consecutivesubcarriers in the frequency domain and 7 consecutive symbols (for DL,OFDM symbols; for UL, SC-FDMA symbols) in the time domain, for a totalof 84 REs. For an extended cyclic prefix, an RB may contain 12consecutive subcarriers in the frequency domain and 6 consecutivesymbols in the time domain, for a total of 72 REs. The number of bitscarried by each RE depends on the modulation scheme.

As illustrated in FIG. 3A, some of the REs carry DL reference (pilot)signals (DL-RS) for channel estimation at the UE. The DL-RS may includedemodulation reference signals (DMRS) and channel state informationreference signals (CSI-RS), exemplary locations of which are labeled “R”in FIG. 3A.

FIG. 3B illustrates an example of various channels within a DL subframeof a frame. The physical downlink control channel (PDCCH) carries DLcontrol information (DCI) within one or more control channel elements(CCEs), each CCE including nine RE groups (REGs), each REG includingfour consecutive REs in an OFDM symbol. The DCI carries informationabout UL resource allocation (persistent and non-persistent) anddescriptions about DL data transmitted to the UE. Multiple (e.g., up to8) DCIs can be configured in the PDCCH, and these DCIs can have one ofmultiple formats. For example, there are different DCI formats for ULscheduling, for non-MIMO DL scheduling, for MIMO DL scheduling, and forUL power control.

A primary synchronization signal (PSS) is used by a UE to determinesubframe/symbol timing and a physical layer identity. A secondarysynchronization signal (SSS) is used by a UE to determine a physicallayer cell identity group number and radio frame timing. Based on thephysical layer identity and the physical layer cell identity groupnumber, the UE can determine a physical cell identifier (PCI). Based onthe PCI, the UE can determine the locations of the aforementioned DL-RS.The physical broadcast channel (PBCH), which carries an MIB, may belogically grouped with the PSS and SSS to form an SSB (also referred toas an SS/PBCH). The MIB provides a number of RBs in the DL systembandwidth and a system frame number (SFN). The physical downlink sharedchannel (PDSCH) carries user data, broadcast system information nottransmitted through the PBCH such as system information blocks (SIBs),and paging messages.

In 3GPP Rel. 16, a wake-up signal (WUS) was introduced and carried byDCI format 2_6, which is monitored by a UE in a designated occasionbefore each configured discontinuous reception (DRX) ON duration, asshown in FIG. 4 via DRX sequence 400. In 3GPP Rel. 16, the WUS includesa UE-specific indication per PCI as to whether the UE should wake up fora next configured DRX ON duration.

In 3GPP Rel. 17, L1/L2-based inter-cell mobility is introduced, wherebyUEs may be served by the RAN in one of two modes, characterized asfollows:

-   -   Mode 1: Each serving cell of the UE has multiple TRPs, which can        be at different locations. Each TRP may have a different PCI        (e.g., indicated by SSB from the respective TRP). The UE may be        served by a subset of the serving cell's TRPs, which can change        over time via DCI or MAC-CE signaling (e.g., TRPs #1 and #2 at        time 1, TRPs #2, #3 and #4 at time 2, etc.), and    -   Mode 2: UE is configured with a group of serving cells with a        single PCI per serving cell. UE is configured to measure L1        metrics per serving cell in the group (e.g., L1-RSRP/SINR/RSRQ).        The UE may be served by a subset of the serving cells, which can        change over time via DCI or MAC-CE signaling (e.g., cell #1 and        #2 at time 1, cells #2, #3 and #4 at time 2, etc.). A base        station (e.g., a gNB associated with one or more of the serving        cells) determines the subset based on an L1 measurement report        from the UE that is transmitted to either particular selected        serving cells or to an anchor serving cell among the group of        serving cells.

Since WUS is conventionally transmitted per-PCI in 3GPP Rel. 16, aseparate WUS needs to be transmitted for each PCI for UEs operating inaccordance with Mode 1 or Mode 2 as noted above, which increasesinterference, system overhead and power consumption at the UE.Embodiments of the disclosure are thereby directed to a WUS that providea wake-up indication for selected PCIs of a PCI group, which providesvarious technical advantages, such as reducing interference, systemoverhead and power consumption at the UE.

FIG. 5 illustrates an exemplary process 500 of wireless communicationsaccording to an aspect of the disclosure. The process 500 of FIG. 5 isperformed by UE 120.

At 502, UE 120 (e.g., antenna(s) 252 a . . . 252 r, modulators 254 a . .. 254 r, Tx MIMO processor 266, transmit processor 264, etc.) optionallytransmits a measurement report associated with a configured DRX ONduration that precedes a WUS, such as the WUS received at 504 (describedbelow). In some designs, this optional measurement report may be used bya base station to select PCI(s) to be included in a PCI group. In somedesigns, the measurement report may comprise L1 metrics, including butnot limited to L1-RSRP, L1-SINR, L1-RSRQ, or any combination thereof. Ina further example, the measurement report may be a periodic (P)measurement report, a semi-periodic (SP) measurement report, or anaperiodic (AP) measurement report.

At 504, UE 120 (e.g., antenna(s) 252 a . . . 252 r, MIMO detector 256,receive processor 258, etc.) a wake-up signal (WUS) that includes anindication of selected PCIs of a PCI group. For example, if UE 120 isoperating in accordance with Mode 1 as described above, the PCI groupmay be associated with all candidate transmission reception points(TRPs) of a single serving cell (e.g., with the selected PCIs mapping toa subset of the TRPs for that single serving cell). In another example,if UE 120 is operating in accordance with Mode 2 as described above, thePCI group may be associated with a plurality of candidate serving cells(e.g., with the selected PCIs mapping to a subset of the candidateserving cells). In an example, the selected PCIs indicated by the WUS at504 may be selected by a base station based on the optional measurementreport from 502.

At 506, UE 120 (e.g., antenna(s) 252 a . . . 252 r, MIMO detector 256,receive processor 258, etc.) monitors, in response to the WUS from 504,one or more configured DRX ON durations associated with the selectedPCIs of the PCI group. The particular DRX ON duration(s) for which theUE 120 monitors at 506 is configurable. For example, the one or more DRXON durations may comprise (i) the next configured DRX ON durationsubsequent to the WUS, (ii) the next N configured DRX ON durationssubsequent to the WUS, N being an integer that is greater than or equalto 2, (iii) each subsequent configured DRX ON duration subsequent to theWUS until instructed otherwise, and/or (iv) a designated set ofconfigured DRX ON durations configured by the base station. Any of(i)-(iv) may be dynamically configured via the WUS or other signaling(e.g., RRC, MAC-CE, DCI, etc.). Alternatively, any of (i)-(iv) may bepre-defined.

FIG. 6 illustrates an exemplary process 600 of wireless communicationsaccording to an aspect of the disclosure. The process 600 of FIG. 6 isperformed by BS 110.

At 602, BS 110 (e.g., antenna(s) 234 a . . . 234 r, MIMO detector 236,receive processor 238, etc.) optionally receives a measurement reportassociated with a configured DRX ON duration that precedes a WUS, suchas the WUS transmitted at 606 (described below). In some designs, themeasurement report may comprise L1 metrics, including but not limited toL1-RSRP, L1-SINR, L1-RSRQ, or any combination thereof. In a furtherexample, the measurement report may be a periodic (P) measurementreport, a semi-periodic (SP) measurement report, or an aperiodic (AP)measurement report.

At 604, BS 110 (e.g., controller/processor 240, etc.) optionally selectsPCIs from a PCI group based on the measurement report. For example, ifUE 120 is operating in accordance with Mode 1 as described above, thePCIs may be selected from a PCI group that comprises all candidate TRPsof a single serving cell. In another example, if UE 120 is operating inaccordance with Mode 2 as described above, the PCIs may be selected froma PCI group that comprises a plurality of candidate serving cells. Insome designs, the measurement report is used to select the PCIs whichcan provide the best service to the UE.

At 606, BS 110 (e.g., antenna(s) 234 a . . . 234 r, modulators 232 a . .. 232 t, Tx MIMO processor 220, processor 220, etc.) transmits a wake-upsignal (WUS) that includes an indication of selected PCIs of a PCIgroup. For example, if UE 120 is operating in accordance with Mode 1 asdescribed above, the PCI group may be associated with all candidate TRPsof a single serving cell (e.g., with the selected PCIs mapping to asubset of the TRPs for that single serving cell). In another example, ifUE 120 is operating in accordance with Mode 2 as described above, thePCI group may be associated with a plurality of candidate serving cells(e.g., with the selected PCIs mapping to a subset of the candidateserving cells). In an example, the selected PCIs indicated by the WUS at606 may be selected by BS 110 at 604 based on the optional measurementreport from 602.

At 608, BS 110 (e.g., antenna(s) 234 a . . . 234 r, modulators 232 a . .. 232 t, Tx MIMO processor 220, processor 220, etc.) transmits, to theUE based on the WUS, on one or more configured DRX ON durationsassociated with the selected PCIs of the PCI group. The particular DRXON duration(s) on which BS 110 transmits to the UE at 608 isconfigurable. For example, the one or more DRX ON durations may comprise(i) the next configured DRX ON duration subsequent to the WUS, (ii) thenext N configured DRX ON durations subsequent to the WUS, N being aninteger that is greater than or equal to 2, (iii) each subsequentconfigured DRX ON duration subsequent to the WUS until instructedotherwise, and/or (iv) a designated set of configured DRX ON durationsconfigured by the base station. Any of (i)-(iv) may be dynamicallyconfigured via the WUS or other signaling (e.g., RRC, MAC-CE, DCI,etc.). Alternatively, any of (i)-(iv) may be pre-defined.

FIG. 7 illustrates a DRX sequence 700 based on an example implementationof the processes 500-600 of FIGS. 5-6 in accordance with an embodimentof the disclosure. In FIG. 7 , UE 120 receives a first WUS 702 from BS110, which instructs UE 120 to monitor at least part of a firstconfigured DRX ON duration 704. During the first configured DRX ONduration 704, UE 120 transmits a measurement report to BS 110 at 706. BS110 receives the measurement report at 706, and uses the measurementreport to select PCI(s) from a PCI group. UE 120 receives a second WUS708 from BS 110 which indicates the selected PCI(s) from the PCI group,which instructs UE 120 to monitor at a second configured DRX ON duration710 in association with BWPs of the selected PCI(s) indicated via thesecond WUS 708.

In 3GPP Rel. 16, WUS also indicates dormancy status information perconfigured secondary cell (SCell) group per UE. In particular, if theWUS indicates the SCell group to be in dormant state, each activatedSCell in the corresponding group will transition to its dormant BWP, forwhich no PDCCH monitoring is performed to save power at the UE.Alternatively, the SCell group is indicated to be in a non-dormantstate, each activated SCell in the corresponding group will transitionto its first non-dormant BWP, which has PDCCH monitoring for activecommunications

Since WUS is conventionally transmitted per-PCI in 3GPP Rel. 16, aseparate indication of dormancy status via WUS needs to be transmittedfor the SCell group of each PCI for UEs operating as noted above, whichincreases interference, system overhead and power consumption at the UE.Embodiments of the disclosure are thereby directed to a WUS that providedormancy status information for a selected set of PCIs, which providesvarious technical advantages, such as reducing interference, systemoverhead and power consumption at the UE.

FIG. 8 illustrates an exemplary process 800 of wireless communicationsaccording to an aspect of the disclosure. The process 800 of FIG. 8 isperformed by UE 120.

At 802, UE 120 (e.g., antenna(s) 252 a . . . 252 r, MIMO detector 256,receive processor 258, etc.) receives a signal that includes dormancystatus information for a set of selected physical cell identifiers(PCIs). In some designs, the signal may be received in a DCIcommunication in a search space monitored by the UE outside of an activetime (e.g., a WUS). In other designs, the signal may be received in aDCI communication in a search space monitored by the UE inside of anactive time (e.g., with the dormancy status information being conveyedvia a modification to DCI format 1_1 or 0_1 for UE-specific trafficscheduling).\

At 804, for each PCI in the set of selected PCIs indicated by thedormancy status information as associated with a dormant state, UE 120(e.g., antenna(s) 252 a . . . 252 r, MIMO detector 256, receiveprocessor 258, controller/processor 280, etc.) refrains from PhysicalDownlink Control Channel (PDCCH) monitoring on a dormant bandwidth part(BWP) to which the respective PCI transitions. In some designs, eventhough PDCCH monitoring is not performed on the dormant BWP, therespective PCI(s) may transmit other non-traffic information on thedormant BWP (e.g., to maintain synchronization, power control, etc.). Insome cases, zero PCIs, a subset of PCIs, or all PCIs in the set ofselected PCIs may be indicated by the dormancy status information asassociated with the dormant state. Moreover, in some designs, the set ofselected PCIs may itself correspond to a subset of a larger candidatePCI group. For example, the PCI group may be associated with allcandidate TRPs of a single serving cell (e.g., Mode 1), the PCI groupmay be associated with TRPs associated with a plurality of candidateserving cells, or a combination thereof.

At 806, for each PCI in the set of selected PCIs indicated by thedormancy status information as associated with a non-dormant state, UE120 (e.g., antenna(s) 252 a . . . 252 r, MIMO detector 256, receiveprocessor 258, controller/processor 280, etc.) performs PDCCH monitoringon a non-dormant BWP to which the respective PCI transitions. Forexample, the non-dormant BWP may comprise a first non-dormant BWPsubsequent to the signal from 802. In some cases, zero PCIs, a subset ofPCIs, or all PCIs in the set of selected PCIs may be indicated by thedormancy status information as associated with the non-dormant state.

FIG. 9 illustrates an exemplary process 900 of wireless communicationsaccording to an aspect of the disclosure. The process 900 of FIG. 9 isperformed by BS 110.

At 902, BS 110 (e.g., antenna(s) 234 a . . . 234 r, modulators 232 a . .. 232 t, Tx MIMO processor 220, processor 220, etc.) transmits, to a UE,a signal that includes dormancy status information for a set of selectedPCIs. In some designs, the signal may be received in a DCI communicationin a search space monitored by the UE outside of an active time (e.g., aWUS). In other designs, the signal may be received in a DCIcommunication in a search space monitored by the UE inside of an activetime (e.g., with the dormancy status information being conveyed via amodification to DCI format 1_1 or 0_1 for UE-specific trafficscheduling).

At 904, for each PCI in the set of selected PCIs indicated by thedormancy status information as associated with a dormant state, BS 110(e.g., antenna(s) 234 a . . . 234 r, modulators 232 a . . . 232 t, TxMIMO processor 220, processor 220, etc.) transitions the respective PCIto a dormant bandwidth part (BWP) without PDCCH communications targetedto the UE. In some designs, even though PDCCH communications are nottargeted to the UE on the dormant BWP, the respective PCI(s) maytransmit other non-traffic information on the dormant BWP (e.g., tomaintain synchronization, power control, etc.). In some cases, zeroPCIs, a subset of PCIs, or all PCIs in the set of selected PCIs may beindicated by the dormancy status information as associated with thedormant state. Moreover, in some designs, the set of selected PCIs mayitself correspond to a subset of a larger candidate PCI group. Forexample, the PCI group may be associated with all candidate TRPs of asingle serving cell (e.g., Mode 1), the PCI group may be associated withTRPs associated with a plurality of candidate serving cells, or acombination thereof.

At 906, for each PCI in the set of selected PCIs indicated by thedormancy status information as associated with a non-dormant state, BS110 (e.g., antenna(s) 234 a . . . 234 r, modulators 232 a . . . 232 t,Tx MIMO processor 220, processor 220, etc.) transitions the respectivePCI to a non-dormant BWP with PDCCH communications targeted to the UE.For example, the non-dormant BWP may comprise a first non-dormant BWPsubsequent to the signal from 906. In some cases, zero PCIs, a subset ofPCIs, or all PCIs in the set of selected PCIs may be indicated by thedormancy status information as associated with the non-dormant state.

FIG. 10 illustrates a DRX sequence 1000 based on an exampleimplementation of the processes 800-900 of FIGS. 8-9 in accordance withan embodiment of the disclosure. In FIG. 10 , UE 120 receives a firstWUS 1002 from BS 110, which instructs UE 120 to monitor at least part ofa first configured DRX ON duration 1004. BS 110 determines a dormancystatus for selected PCI(s), and indicates the dormancy status of theselected PCI(s) via a second WUS 1006. At 1008, UE 120 then monitors adormant BWP or a non-dormant BWP associated with the selected PCI(s) inaccordance with the indicated dormancy status information for theselected PCI(s) during a next configured DRX ON duration.

Referring to FIGS. 8-10 , in an example, the dormancy status informationfor each selected PCI in the set of selected PCIs may be indicatedexplicitly per selected PCI. For example, assume that two PCIs areselected to serve the UE. In this case, two bits in the signal at 802 or902 may be used to signal dormancy states for these two PCIs (e.g., onebit specifies dormant state or non-dormant state for PCI 1, and theother bit specifies dormant state or non-dormant state for PCI 2). Inanother example, the dormancy status information for each selected PCIin the set of selected PCIs is indicated implicitly per PCI group. Forexample, the PCI group may correspond to a single serving cell in Mode 1(e.g., a group of TRPs for one serving cell) or to multiple servingcells in Mode 2. In this case, the dormancy status information can beconfigured to apply to each selected PCI in the PCI group (e.g., via asingle bit, rather than one bit per PCI).

While examples above describe UEs which are operable in Mode 1 or Mode2, in other designs a hybrid Mode 1+2 may be implemented whereby a PCIgroup comprises multiple cells as well as multiple TRPs per cell for atleast one of the multiple cells. Hence, PCI groups are not limited tooperation in accordance with Mode 1 only or Mode 2 only.

FIG. 11 is a conceptual data flow diagram 1100 illustrating the dataflow between different means/components in exemplary apparatuses 1102and 1180 in accordance with an embodiment of the disclosure. Theapparatus 1102 may be a UE (e.g., UE 120) in communication with anapparatus 1180, which may be a base station (e.g., base station 110).

The apparatus 1102 includes a transmission component 1104, which maycorrespond to transmitter circuitry in UE 120 as depicted in FIG. 2 ,including controller/processor 280, antenna(s) 252 a . . . 252 r,modulators(s) 254 a . . . 254 r, TX MIMO processor 266, TX processor264. The apparatus 1102 further includes PCI component 1106, which maycorrespond to processor circuitry in UE 120 as depicted in FIG. 2 ,including controller/processor 280, etc. The apparatus 1102 furtherincludes a reception component 1108, which may correspond to receivercircuitry in UE 120 as depicted in FIG. 2 , includingcontroller/processor 280, antenna(s) 252 a . . . 252 r, demodulators(s)254 a . . . 254 r, MIMO detector 256, RX processor 258.

The apparatus 1180 includes a reception component 1182, which maycorrespond to receiver circuitry in BS 110 as depicted in FIG. 2 ,including controller/processor 240, antenna(s) 234 a . . . 234 r,demodulators(s) 232 a . . . 232 r, MIMO detector 236, RX processor 238,communication unit 244. The apparatus 1180 further includes a PCIcomponent 1184, which may correspond to processor circuitry in BS 110 asdepicted in FIG. 2 , including controller/processor 240. The apparatus1180 further includes a transmission component 1186, which maycorrespond to transmission circuitry in BS 110 as depicted in FIG. 2 ,including e.g., controller/processor 240, antenna(s) 234 a . . . 234 r,modulators(s) 232 a . . . 232 r, Tx MIMO processor 230, TX processor220, communication unit 244.

Referring to FIG. 11 , the transmission component 1104 transmits ameasurement report to the reception component 1182, which forwards themeasurement report to PCI component 1184. The PCI component 1184 selectsPCI(s) based on the measurement report. The selected PCI(s) may beindicated in association with a WUS, dormancy status information, or acombination thereof. The transmission component 1186 transmits downlinkdata to the reception component 1108, including DCI communications,WUSs, PDCCH communications, DRX ON traffic, or a combination thereof.Some or all of these communications may be measured and reported back tothe apparatus 1180 via the measurement report. Some or all of thesecommunications may convey the selected PCI(s), and the PCI component1106 can process such signals with respect to the selected PCI(s) ratherthan in a PCI-specific manner where a single signal is limited toapplication to a single PCI.

One or more components of the apparatus 1102 and apparatus 1180 mayperform each of the blocks of the algorithm in the aforementionedflowcharts of FIG. 4-6 or 8-9 . As such, each block in theaforementioned flowcharts of FIG. 4-6 or 8-9 may be performed by acomponent and the apparatus 1102 and apparatus 1180 may include one ormore of those components. The components may be one or more hardwarecomponents specifically configured to carry out the statedprocesses/algorithm, implemented by a processor configured to performthe stated processes/algorithm, stored within a computer-readable mediumfor implementation by a processor, or some combination thereof.

FIG. 12 is a diagram 1200 illustrating an example of a hardwareimplementation for an apparatus 1102 employing a processing system 1214.The processing system 1214 may be implemented with a bus architecture,represented generally by the bus 1224. The bus 1224 may include anynumber of interconnecting buses and bridges depending on the specificapplication of the processing system 1214 and the overall designconstraints. The bus 1224 links together various circuits including oneor more processors and/or hardware components, represented by theprocessor 1204, the components 1104, 1106 and 1108, and thecomputer-readable medium/memory 1206. The bus 1224 may also link variousother circuits such as timing sources, peripherals, voltage regulators,and power management circuits, which are well known in the art, andtherefore, will not be described any further.

The processing system 1214 may be coupled to a transceiver 1210. Thetransceiver 1210 is coupled to one or more antennas 1220. Thetransceiver 1210 provides a means for communicating with various otherapparatus over a transmission medium. The transceiver 1210 receives asignal from the one or more antennas 1220, extracts information from thereceived signal, and provides the extracted information to theprocessing system 1214, specifically the reception component 1108. Inaddition, the transceiver 1210 receives information from the processingsystem 1214, specifically the transmission component 1104, and based onthe received information, generates a signal to be applied to the one ormore antennas 1220. The processing system 1214 includes a processor 1204coupled to a computer-readable medium/memory 1206. The processor 1204 isresponsible for general processing, including the execution of softwarestored on the computer-readable medium/memory 1206. The software, whenexecuted by the processor 1204, causes the processing system 1214 toperform the various functions described supra for any particularapparatus. The computer-readable medium/memory 1206 may also be used forstoring data that is manipulated by the processor 1204 when executingsoftware. The processing system 1214 further includes at least one ofthe components 1104, 1106 and 1108. The components may be softwarecomponents running in the processor 1204, resident/stored in thecomputer readable medium/memory 1206, one or more hardware componentscoupled to the processor 1204, or some combination thereof. Theprocessing system 1214 may be a component of the UE 120 of FIG. 2 andmay include the memory 282, and/or at least one of the TX processor 264,the RX processor 258, and the controller/processor 280.

In one configuration, the apparatus 1102 (e.g., a UE) for wirelesscommunication includes means for receiving a wake-up signal (WUS) thatincludes an indication of selected physical cell identifiers (PCIs) of aPCI group, and means for monitoring, in response to the WUS, one or moreconfigured DRX ON durations associated with the selected PCIs of the PCIgroup. The apparatus 1102 for wireless communication further optionallyincludes means for transmitting a measurement report associated with aconfigured DRX ON duration that precedes the WUS, wherein the selectedPCIs of the PCI group are based on the measurement report.

In another configuration, the apparatus 1102 (e.g., a UE) for wirelesscommunication includes means for receiving a signal that includesdormancy status information for a set of selected physical cellidentifiers (PCIs), means for, for each PCI in the set of selected PCIsindicated by the dormancy status information as associated with adormant state, refraining from Physical Downlink Control Channel (PDCCH)monitoring on a dormant bandwidth part (BWP) to which the respective PCItransitions, and means for, for each PCI in the set of selected PCIsindicated by the dormancy status information as associated with anon-dormant state, performing PDCCH monitoring on a non-dormant BWP towhich the respective PCI transitions.

The aforementioned means may be one or more of the aforementionedcomponents of the apparatus 1102 and/or the processing system 1214 ofthe apparatus 1102 configured to perform the functions recited by theaforementioned means. As described supra, the processing system 1214 mayinclude the TX processor 264, the RX processor 258, and thecontroller/processor 280.

FIG. 13 is a diagram 1300 illustrating an example of a hardwareimplementation for an apparatus 1180 employing a processing system 1314.The processing system 1314 may be implemented with a bus architecture,represented generally by the bus 1324. The bus 1324 may include anynumber of interconnecting buses and bridges depending on the specificapplication of the processing system 1314 and the overall designconstraints. The bus 1324 links together various circuits including oneor more processors and/or hardware components, represented by theprocessor 1304, the components 1182, 1184 and 1186, and thecomputer-readable medium/memory 1306. The bus 1324 may also link variousother circuits such as timing sources, peripherals, voltage regulators,and power management circuits, which are well known in the art, andtherefore, will not be described any further.

The processing system 1314 may be coupled to a transceiver 1310. Thetransceiver 1310 is coupled to one or more antennas 1320. Thetransceiver 1310 provides a means for communicating with various otherapparatus over a transmission medium. The transceiver 1310 receives asignal from the one or more antennas 1320, extracts information from thereceived signal, and provides the extracted information to theprocessing system 1314, specifically the reception component 1182. Inaddition, the transceiver 1310 receives information from the processingsystem 1314, specifically the transmission component 1186, and based onthe received information, generates a signal to be applied to the one ormore antennas 1320. The processing system 1314 includes a processor 1304coupled to a computer-readable medium/memory 1306. The processor 1304 isresponsible for general processing, including the execution of softwarestored on the computer-readable medium/memory 1306. The software, whenexecuted by the processor 1304, causes the processing system 1314 toperform the various functions described supra for any particularapparatus. The computer-readable medium/memory 1306 may also be used forstoring data that is manipulated by the processor 1304 when executingsoftware. The processing system 1314 further includes at least one ofthe components 1182, 1184 and 1186. The components may be softwarecomponents running in the processor 1304, resident/stored in thecomputer readable medium/memory 1306, one or more hardware componentscoupled to the processor 1304, or some combination thereof. Theprocessing system 1314 may be a component of the BS 110 of FIG. 2 andmay include the memory 242, and/or at least one of the TX processor 220,the RX processor 238, and the controller/processor 240.

In one configuration, the apparatus 1180 (e.g., a BS) for wirelesscommunication includes means for transmitting, to a user equipment (UE),a wake-up signal (WUS) that includes an indication of selected physicalcell identifiers (PCIs) of a PCI group, and means for transmitting, tothe UE based on the WUS, on one or more configured DRX ON durationsassociated with the selected PCIs of the PCI group. The apparatus 1180for wireless communication further optionally includes means forreceiving a measurement report, from the UE, a measurement reportassociated with a configured DRX ON duration that precedes the WUS, andmeans for selecting the selected PCIs of the PCI group based on themeasurement report.

In another configuration, the apparatus 1180 (e.g., a BS) for wirelesscommunication includes means for transmitting, to a user equipment (UE),a signal that includes dormancy status information for a set of selectedphysical cell identifiers (PCIs), means for, for each PCI in the set ofselected PCIs indicated by the dormancy status information as associatedwith a dormant state, transitioning the respective PCI to a dormantbandwidth part (BWP) without PDCCH communications targeted to the UE,and means for, for each PCI in the set of selected PCIs indicated by thedormancy status information as associated with a non-dormant state,transitioning the respective PCI to a non-dormant BWP with PDCCHcommunications targeted to the UE.

The aforementioned means may be one or more of the aforementionedcomponents of the apparatus 1180 and/or the processing system 1314 ofthe apparatus 1180 configured to perform the functions recited by theaforementioned means. As described supra, the processing system 1314 mayinclude the TX processor 220, the RX processor 238, and thecontroller/processor 240.

As used herein, the term “component” is intended to be broadly construedas hardware, firmware, and/or a combination of hardware and software. Asused herein, a processor is implemented in hardware, firmware, and/or acombination of hardware and software.

In the detailed description above it can be seen that different featuresare grouped together in examples. This manner of disclosure should notbe understood as an intention that the example clauses have morefeatures than are explicitly mentioned in each clause. Rather, thevarious aspects of the disclosure may include fewer than all features ofan individual example clause disclosed. Therefore, the following clausesshould hereby be deemed to be incorporated in the description, whereineach clause by itself can stand as a separate example. Although eachdependent clause can refer in the clauses to a specific combination withone of the other clauses, the aspect(s) of that dependent clause are notlimited to the specific combination. It will be appreciated that otherexample clauses can also include a combination of the dependent clauseaspect(s) with the subject matter of any other dependent clause orindependent clause or a combination of any feature with other dependentand independent clauses. The various aspects disclosed herein expresslyinclude these combinations, unless it is explicitly expressed or can bereadily inferred that a specific combination is not intended (e.g.,contradictory aspects, such as defining an element as both an insulatorand a conductor). Furthermore, it is also intended that aspects of aclause can be included in any other independent clause, even if theclause is not directly dependent on the independent clause.

Implementation examples are described in the following numbered clauses:

Clause 1. A method of operating a user equipment (UE), comprising:receiving a wake-up signal (WUS) that includes an indication of selectedphysical cell identifiers (PCIs) of a PCI group; and monitoring, inresponse to the WUS, one or more configured DRX ON durations associatedwith the selected PCIs of the PCI group.

Clause 2. The method of clause 1, wherein the PCI group is associatedwith all candidate transmission reception points (TRPs) of a singleserving cell, or wherein the PCI group is associated with TRPsassociated with a plurality of candidate serving cells, or a combinationthereof.

Clause 3. The method of any of clauses 1 to 2, wherein the one or moreconfigured DRX ON durations associated with the selected PCIs of the PCIgroup includes the next configured DRX ON duration subsequent to theWUS.

Clause 4. The method of any of clauses 1 to 3, wherein the one or moreconfigured DRX ON durations associated with the selected PCIs of the PCIgroup includes the next N configured DRX ON durations subsequent to theWUS, N being an integer that is greater than or equal to 2.

Clause 5. The method of any of clauses 1 to 4, wherein the one or moreconfigured DRX ON durations associated with the selected PCIs of the PCIgroup includes each subsequent configured DRX ON duration subsequent tothe WUS until instructed otherwise.

Clause 6. The method of any of clauses 1 to 5, wherein the one or moreconfigured DRX ON durations associated with the selected PCIs of the PCIgroup includes a designated set of configured DRX ON durationsconfigured by a base station.

Clause 7. The method of any of clauses 1 to 6, further comprising:transmitting a measurement report associated with a configured DRX ONduration that precedes the WUS, wherein the selected PCIs of the PCIgroup are based on the measurement report.

Clause 8. A method of operating a base station, comprising:transmitting, to a user equipment (UE), a wake-up signal (WUS) thatincludes an indication of selected physical cell identifiers (PCIs) of aPCI group; and transmitting, to the UE based on the WUS, on one or moreconfigured DRX ON durations associated with the selected PCIs of the PCIgroup.

Clause 9. The method of clause 8, further comprising: receiving ameasurement report, from the UE, a measurement report associated with aconfigured DRX ON duration that precedes the WUS; and selecting theselected PCIs of the PCI group based on the measurement report.

Clause 10. The method of any of clauses 8 to 9, wherein the PCI group isassociated with all candidate transmission reception points (TRPs) of asingle serving cell, or wherein the PCI group is associated with aplurality of candidate serving cells, or a combination thereof.

Clause 11. The method of any of clauses 8 to 10, wherein the one or moreconfigured DRX ON durations associated with the selected PCIs of the PCIgroup includes the next configured DRX ON duration subsequent to theWUS.

Clause 12. The method of any of clauses 8 to 11, wherein the one or moreconfigured DRX ON durations associated with the selected PCIs of the PCIgroup includes the next N configured DRX ON durations subsequent to theWUS, N being an integer that is greater than or equal to 2.

Clause 13. The method of any of clauses 8 to 12, wherein the one or moreconfigured DRX ON durations associated with the selected PCIs of the PCIgroup includes each subsequent configured DRX ON duration subsequent tothe WUS until instructed otherwise.

Clause 14. The method of any of clauses 8 to 13, wherein the one or moreconfigured DRX ON durations associated with the selected PCIs of the PCIgroup includes a designated set of configured DRX ON durationsconfigured by the base station.

Clause 15. A method of operating a user equipment (UE), comprising:receiving a signal that includes dormancy status information for a setof selected physical cell identifiers (PCIs); for each PCI in the set ofselected PCIs indicated by the dormancy status information as associatedwith a dormant state, refraining from Physical Downlink Control Channel(PDCCH) monitoring on a dormant bandwidth part (BWP) to which therespective PCI transitions; and for each PCI in the set of selected PCIsindicated by the dormancy status information as associated with anon-dormant state, performing PDCCH monitoring on a non-dormant BWP towhich the respective PCI transitions.

Clause 16. The method of clause 15, wherein the signal is received in adownlink control information (DCI) communication in a search spacemonitored by the UE outside of an active time.

Clause 17. The method of clause 16, wherein the signal comprises awake-up signal (WUS).

Clause 18. The method of any of clauses 15 to 17, wherein the signal isreceived in a downlink control information (DCI) communication in asearch space monitored by the UE inside of an active time.

Clause 19. The method of any of clauses 15 to 18, wherein the dormancystatus information for each selected PCI in the set of selected PCIs isindicated explicitly per selected PCI.

Clause 20. The method of any of clauses 15 to 19, wherein the dormancystatus information for each selected PCI in the set of selected PCIs isindicated implicitly per PCI group.

Clause 21. The method of clause 20, wherein the PCI group is associatedwith all candidate transmission reception points (TRPs) of a singleserving cell.

Clause 22. The method of any of clauses 20 to 21, wherein the PCI groupis associated with TRPs associated with a plurality of candidate servingcells, or a combination thereof.

Clause 23. A method of operating a base station, comprising:transmitting, to a user equipment (UE), a signal that includes dormancystatus information for a set of selected physical cell identifiers(PCIs); and for each PCI in the set of selected PCIs indicated by thedormancy status information as associated with a dormant state,transitioning the respective PCI to a dormant bandwidth part (BWP)without PDCCH communications targeted to the UE; and for each PCI in theset of selected PCIs indicated by the dormancy status information asassociated with a non-dormant state, transitioning the respective PCI toa non-dormant BWP with PDCCH communications targeted to the UE.

Clause 24. The method of clause 23, wherein the signal is transmitted ina downlink control information (DCI) communication in a search spaceoutside of an active time of the UE.

Clause 25. The method of clause 24, wherein the signal comprises awake-up signal (WUS).

Clause 26. The method of any of clauses 23 to 25, wherein the signal istransmitted in a downlink control information (DCI) communication in asearch space inside of an active time of the UE.

Clause 27. The method of any of clauses 234 to 26, wherein the dormancystatus information for each selected PCI in the set of selected PCIs isindicated explicitly per selected PCI.

Clause 28. The method of any of clauses 23 to 27, wherein the dormancystatus information for each selected PCI in the set of selected PCIs isindicated implicitly per PCI group.

Clause 29. The method of clause 28, wherein the PCI group is associatedwith all candidate transmission reception points (TRPs) of a singleserving cell.

Clause 30. The method of any of clauses 28 to 29, wherein the PCI groupis associated with TRPs associated with a plurality of candidate servingcells.

Clause 31. An apparatus comprising a memory and at least one processorcommunicatively coupled to the memory, the memory and the at least oneprocessor configured to perform a method according to any of clauses 1to 30.

Clause 32. An apparatus comprising means for performing a methodaccording to any of clauses 1 to 30.

Clause 33. A non-transitory computer-readable medium storingcomputer-executable instructions, the computer-executable comprising atleast one instruction for causing a computer or processor to perform amethod according to any of clauses 1 to 30.

As used herein, satisfying a threshold may, depending on the context,refer to a value being greater than the threshold, greater than or equalto the threshold, less than the threshold, less than or equal to thethreshold, equal to the threshold, not equal to the threshold, and/orthe like.

It will be apparent that systems and/or methods described herein may beimplemented in different forms of hardware, firmware, and/or acombination of hardware and software. The actual specialized controlhardware or software code used to implement these systems and/or methodsis not limiting of the aspects. Thus, the operation and behavior of thesystems and/or methods were described herein without reference tospecific software code—it being understood that software and hardwarecan be designed to implement the systems and/or methods based, at leastin part, on the description herein.

Even though particular combinations of features are recited in theclaims and/or disclosed in the specification, these combinations are notintended to limit the disclosure of various aspects. In fact, many ofthese features may be combined in ways not specifically recited in theclaims and/or disclosed in the specification. Although each dependentclaim listed below may directly depend on only one claim, the disclosureof various aspects includes each dependent claim in combination withevery other claim in the claim set. A phrase referring to “at least oneof” a list of items refers to any combination of those items, includingsingle members. As an example, “at least one of: a, b, or c” is intendedto cover a, b, c, a-b, a-c, b-c, and a-b-c, as well as any combinationwith multiples of the same element (e.g., a-a, a-a-a, a-a-b, a-a-c,a-b-b, a-c-c, b-b, b-b-b, b-b-c, c-c, and c-c-c or any other ordering ofa, b, and c).

No element, act, or instruction used herein should be construed ascritical or essential unless explicitly described as such. Also, as usedherein, the articles “a” and “an” are intended to include one or moreitems, and may be used interchangeably with “one or more.” Furthermore,as used herein, the terms “set” and “group” are intended to include oneor more items (e.g., related items, unrelated items, a combination ofrelated and unrelated items, and/or the like), and may be usedinterchangeably with “one or more.” Where only one item is intended, thephrase “only one” or similar language is used. Also, as used herein, theterms “has,” “have,” “having,” and/or the like are intended to beopen-ended terms. Further, the phrase “based on” is intended to mean“based, at least in part, on” unless explicitly stated otherwise.

What is claimed is:
 1. A method of operating a user equipment (UE),comprising: receiving a signal that includes dormancy status informationfor a set of selected physical cell identifiers (PCIs); for each PCI inthe set of selected PCIs indicated by the dormancy status information asassociated with a dormant state, refraining from Physical DownlinkControl Channel (PDCCH) monitoring on a dormant bandwidth part (BWP) towhich the respective PCI transitions; and for each PCI in the set ofselected PCIs indicated by the dormancy status information as associatedwith a non-dormant state, performing PDCCH monitoring on a non-dormantBWP to which the respective PCI transitions.
 2. The method of claim 1,wherein the signal is received in a downlink control information (DCI)communication in a search space monitored by the UE outside of an activetime.
 3. The method of claim 2, wherein the signal comprises a wake-upsignal (WUS).
 4. The method of claim 1, wherein the signal is receivedin a downlink control information (DCI) communication in a search spacemonitored by the UE inside of an active time.
 5. The method of claim 1,wherein the dormancy status information for each selected PCI in the setof selected PCIs is indicated explicitly per selected PCI.
 6. The methodof claim 1, wherein the dormancy status information for each selectedPCI in the set of selected PCIs is indicated implicitly per PCI group.7. The method of claim 6, wherein the PCI group is associated with allcandidate transmission reception points (TRPs) of a single serving cell.8. The method of claim 6, wherein the PCI group is associated with TRPsassociated with a plurality of candidate serving cells, or a combinationthereof.
 9. A method of operating a wireless network component,comprising: transmitting, to a user equipment (UE), a signal thatincludes dormancy status information for a set of selected physical cellidentifiers (PCIs); and for each PCI in the set of selected PCIsindicated by the dormancy status information as associated with adormant state, transitioning the respective PCI to a dormant bandwidthpart (BWP) without PDCCH communications targeted to the UE; and for eachPCI in the set of selected PCIs indicated by the dormancy statusinformation as associated with a non-dormant state, transitioning therespective PCI to a non-dormant BWP with PDCCH communications targetedto the UE.
 10. The method of claim 9, wherein the signal is transmittedin a downlink control information (DCI) communication in a search spaceoutside of an active time of the UE.
 11. The method of claim 10, whereinthe signal comprises a wake-up signal (WUS).
 12. The method of claim 9,wherein the signal is transmitted in a downlink control information(DCI) communication in a search space inside of an active time of theUE.
 13. The method of claim 9, wherein the dormancy status informationfor each selected PCI in the set of selected PCIs is indicatedexplicitly per selected PCI.
 14. The method of claim 9, wherein thedormancy status information for each selected PCI in the set of selectedPCIs is indicated implicitly per PCI group.
 15. The method of claim 14,wherein the PCI group is associated with all candidate transmissionreception points (TRPs) of a single serving cell.
 16. The method ofclaim 14, wherein the PCI group is associated with TRPs associated witha plurality of candidate serving cells.
 17. A user equipment (UE),comprising: one or more memories; and one or more processorscommunicatively coupled to the one or more memories, the one or moreprocessors, either alone or in combination, configured to: receive asignal that includes dormancy status information for a set of selectedphysical cell identifiers (PCIs); for each PCI in the set of selectedPCIs indicated by the dormancy status information as associated with adormant state, refrain from Physical Downlink Control Channel (PDCCH)monitoring on a dormant bandwidth part (BWP) to which the respective PCItransitions; and for each PCI in the set of selected PCIs indicated bythe dormancy status information as associated with a non-dormant state,perform PDCCH monitoring on a non-dormant BWP to which the respectivePCI transitions.
 18. The UE of claim 17, wherein the signal is receivedin a downlink control information (DCI) communication in a search spacemonitored by the UE outside of an active time.
 19. The UE of claim 18,wherein the signal comprises a wake-up signal (WUS).
 20. The UE of claim17, wherein the signal is received in a downlink control information(DCI) communication in a search space monitored by the UE inside of anactive time.
 21. The UE of claim 17, wherein the dormancy statusinformation for each selected PCI in the set of selected PCIs isindicated explicitly per selected PCI.
 22. The UE of claim 17, whereinthe dormancy status information for each selected PCI in the set ofselected PCIs is indicated implicitly per PCI group.
 23. The UE of claim22, wherein the PCI group is associated with all candidate transmissionreception points (TRPs) of a single serving cell.
 24. The UE of claim22, wherein the PCI group is associated with TRPs associated with aplurality of candidate serving cells, or a combination thereof.
 25. Awireless network component, comprising: one or more memories; and one ormore processors communicatively coupled to the one or more memories, theone or more processors, either alone or in combination, configured to:transmit, to a user equipment (UE), a signal that includes dormancystatus information for a set of selected physical cell identifiers(PCIs); and for each PCI in the set of selected PCIs indicated by thedormancy status information as associated with a dormant state,transition the respective PCI to a dormant bandwidth part (BWP) withoutPDCCH communications targeted to the UE; and for each PCI in the set ofselected PCIs indicated by the dormancy status information as associatedwith a non-dormant state, transition the respective PCI to a non-dormantBWP with PDCCH communications targeted to the UE.
 26. The wirelessnetwork component of claim 25, wherein the signal is transmitted in adownlink control information (DCI) communication in a search spaceoutside of an active time of the UE.
 27. The wireless network componentof claim 26, wherein the signal comprises a wake-up signal (WUS). 28.The wireless network component of claim 25, wherein the signal istransmitted in a downlink control information (DCI) communication in asearch space inside of an active time of the UE, or wherein the dormancystatus information for each selected PCI in the set of selected PCIs isindicated explicitly per selected PCI.
 29. The wireless networkcomponent of claim 25, wherein the dormancy status information for eachselected PCI in the set of selected PCIs is indicated implicitly per PCIgroup.
 30. The wireless network component of claim 29, wherein the PCIgroup is associated with all candidate transmission reception points(TRPs) of a single serving cell, or wherein the PCI group is associatedwith TRPs associated with a plurality of candidate serving cells.